Reading another message about the thunderbird sieve extension I too did a telnet request (normally telnet does not listen ;-) $ telnet yanta.nagual.nl 2000 Trying 192.168.11.35... Connected to yanta.nagual.nl. Escape character is '^]'. "IMPLEMENTATION" "Cyrus timsieved v2.3.11" "SASL" "PLAIN OTP LOGIN DIGEST-MD5 CRAM-MD5" "SIEVE" "comparator-i;ascii-numeric fileinto reject vacation imapflags notify envelope relational regex subaddress copy" "STARTTLS" OK So, timsieve IS there. Why on earth does it not listen anymore to a request from my Squirrelmail? Is it an authorization matter after all? Has something changed from xx.9 to version xx.11? ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html